Measurement of the Depth of Maximum of Extensive Air Showers above 10¹⁸ eV
We describe the measurement of the depth of maximum, X<sub>max</sub>, of the longitudinal development of air showers induced by cosmic rays. Almost four thousand events above 10¹⁸ eV observed by the fluorescence detector of the Pierre Auger Observatory in coincidence with at least one su...
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| Autores principales: | , , , , , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2010
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/126473 |
| Aporte de: |
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I19-R120-10915-126473 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Física Measurement longitudinal development cosmic rays fluorescence energy |
| spellingShingle |
Ciencias Exactas Física Measurement longitudinal development cosmic rays fluorescence energy Badagnani, Daniel Omar Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Mariazzi, Analisa Gabriela Moreno, Juan Cruz Sciutto, Sergio Juan Tarutina, Tatiana Tueros, Matías Jorge Wahlberg, Hernán Pablo The Pierre Auger Collaboration Measurement of the Depth of Maximum of Extensive Air Showers above 10¹⁸ eV |
| topic_facet |
Ciencias Exactas Física Measurement longitudinal development cosmic rays fluorescence energy |
| description |
We describe the measurement of the depth of maximum, X<sub>max</sub>, of the longitudinal development of air showers induced by cosmic rays. Almost four thousand events above 10¹⁸ eV observed by the fluorescence detector of the Pierre Auger Observatory in coincidence with at least one surface detector station are selected for the analysis. The average shower maximum was found to evolve with energy at a rate of (106⁺³⁵₋₂₁) g/cm²/decade below 10<sup>18.24 ± 0.05</sup> eV and (24 ± 3) g/cm²/decade above this energy. The measured shower-to-shower fluctuations decrease from about 55 to 26 g/cm². The interpretation of these results in terms of the cosmic ray mass composition is briefly discussed. |
| format |
Articulo Articulo |
| author |
Badagnani, Daniel Omar Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Mariazzi, Analisa Gabriela Moreno, Juan Cruz Sciutto, Sergio Juan Tarutina, Tatiana Tueros, Matías Jorge Wahlberg, Hernán Pablo The Pierre Auger Collaboration |
| author_facet |
Badagnani, Daniel Omar Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Mariazzi, Analisa Gabriela Moreno, Juan Cruz Sciutto, Sergio Juan Tarutina, Tatiana Tueros, Matías Jorge Wahlberg, Hernán Pablo The Pierre Auger Collaboration |
| author_sort |
Badagnani, Daniel Omar |
| title |
Measurement of the Depth of Maximum of Extensive Air Showers above 10¹⁸ eV |
| title_short |
Measurement of the Depth of Maximum of Extensive Air Showers above 10¹⁸ eV |
| title_full |
Measurement of the Depth of Maximum of Extensive Air Showers above 10¹⁸ eV |
| title_fullStr |
Measurement of the Depth of Maximum of Extensive Air Showers above 10¹⁸ eV |
| title_full_unstemmed |
Measurement of the Depth of Maximum of Extensive Air Showers above 10¹⁸ eV |
| title_sort |
measurement of the depth of maximum of extensive air showers above 10¹⁸ ev |
| publishDate |
2010 |
| url |
http://sedici.unlp.edu.ar/handle/10915/126473 |
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